Installation manual

Geo Direct PWM Amplifier
Power PMAC2 Drive Setup 42
Caution
Trying to enable the Geo Direct PAM Drive with misreported current
data could result in damaging the electronics of the Drive.
At this point of the drive-motor setup, and before tuning the current loop, a couple of sanity checks can be
performed, making sure that:
 Enabling the drive with a #nOut0 command does not produce any faults in neither the drive nor the
PMAC.
 The current sensors are operating properly by monitoring the current measurements (i.e.
Motor[x].IaMeas, and Motor[x].IbMeas). These should be reporting values fluctuating around 0.
Frozen values, or values greater than 1000 indicate that the current sensors are not functioning
properly, or a software parameter is incorrect (i.e. Gate1[i].AdcStrobe, Motor[x].PhaseOffset,
Motor[x].AdcMask)
Subsequently, the current loop (Motor[x].IiGain, Motor[x].IpfGain, and Motor[x].IpbGain) can be tuned
using the tuning utility in the IDE software. Commutation, encoder feedback, phasing, and position loop
tuning can then be setup for closed loop control.
Note
Complete closed loop setup procedure can be found in the pertaining
hardware axis-interface, and Power PMAC User/Software Reference
manuals.